Engine



BREST., ENGINE.

Patented Feb. 10,' 1891.

ARY

ROT

2 sheets-Sheet 2.

(No Model.)

' `L.- J. 'EVEREST ROTARY ENGINE 110.446,061. Patented Feb. 10,1891.

- .0 df' J2 UNITED STATES PATENT OEEIc-E.

LABAN J. EVEREST, OF OMAHA, NEBRASKA, ASSIGNOR OF ONE-FOURTH TO HENRY O. BETTERMAN, OF SAME PLACE.

ROTARY E-NGIN E.

SPECIFICATION forming part of Letters Patent No. 4,416,061, dated February 10, 1891. Application filed May 17, 1390# Serial No, 352.200.k (No model.)

To a/ZZ whom, t may concern:

Be it known that l, LABAN J. EvEREsr, of Omaha, in the county of Douglas and State of Nebraska, have inventedV a new and Improved Rotary Engine, of which the following is a full, clear, and exact description.

The object ci' the invention is to provide anew and improved rotary engine, which is csimple and durable in construction, very effective in operation, and utilizes the mot-ive power to the greatest advantage.

The invention consists of a fixed cylinder provided with angularly-arranged inlet-ports and a piston mounted to turn within the said cylinder and provided with recesses or buckets adapted to receive tangential pressure from the motive agent in the annular steaminlet ports.

The invention also consists of certain parts and details and combinations of the same, as will be hereinafter fully described, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specilication, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a sectional side elevation of the improvement on the line a: :c of Fig. 2, and Fig. 2 is a transverse section of the same on the line y y of Fig. 1.

The improved rotary engine A is provided with afraine B, having a suitably-constru cted base C, adapted to be secured on a foundationwall oi brick or other material, placed Whereever the engine is to be located. The frame B supports a cylinder D, made in the shape of a ring having an annular recess D', closed on one side by a ring-shaped head D2, secured to the cylinder D by suitable bolts D3. Into thc recess D of the cylinder D extends the outer edge of the piston E, made in the shape of awheel and secured on a shaft F, mounted to turn in suitable bearings G, formed on, the frame B. The wheel-shaped piston E is provided in its peripheryr with recesses or buckets I, against which is to act the motive agent passing through inlet-ports a, arranged angularly in the cylinder l, so as to lead the motive agent tangentially on the piston E in the said buckets I. The outer ends of. the ports a are connected by branch pipesl with a pipe K, closed at one end and connected at its other end with the steam-inlet pipe L. From the recess D in the cylinder D also leads an exhaust-port b, connecting with an exhaust-pipe N, leading to the outside. The exhaust-port b is arranged between two inletports a, as is plainly shown in Fig. 1, while the series .of inlet-ports a follow each other and are placed equal distances apart without 6o an intervening exhaust-port.

In order toprevent steam from escaping from the annular recess D in the cylinder D, the latter is provided with packing-rings O, pressed against the face of the piston E by means of suitable set-screws P, as is plainly shown in Fig. 2.

The operation is as follows: Steam entering the steam-inlet pipe L passes into the vpipe K, and from the latter passes through the 7o branch pipes .l into the several inlet-ports a, discharging into the annular recess D of the cylinder D. The steam entering the steamspace D in a tangential line presses against the buckets or recesses I of the piston E, so that the latter is rotated in the direction of the arrow a.' lt will be seen that the steam entering through the port a, located near the inlet-pipe L, fills the irst bucket or recess I, and is supplemented with steam from the 8o next following inlet-port a when `the said recess opens into the latter port. This is repeated in all the successive ports a, so that the steam which originally passed into the bucket at the iii-st port a, near the inlet-pipe 8 5 L, is not exhausted unti-l it has passed all the inlet-ports a and opens into the exhaust-port b, located near the first inlet-port a. It will be seen that by this arrangement no motive agent whatever is wasted, and the full power 9o of the motive agent is exerted before the steam passes -to the outside through the exhaustport l). Thus it will be seen that each bucket l has a tangential pressure during nearly one entire revolution ot' the pistonE, so that the 95 latter is acted on with a pressure equal to as many buckets as it, contains multiplied by the boiler-pressure. For inst-ance, as shown in Fig. 1,the piston E is provided with ten buckets, and i' the boiler-pressure is twenty-five roo pounds, the said piston has an average press- ,ure of nine by twenty-five pounds, equaling two hundred and tWenty-fivepounds, it being understood that one bucket exhausts into the 'port b While the others are under f uli pressure. Y

Having thusfully described my invention, I claim as new and desire to secure by Letters Patenti 1. In a rotary engine, the combination of a ring-shaped cylinder having an annular recess and provided with a series of angularlyarranged inlet-ports leading from said recess and an exhaust-port between two inlet-ports Y and adjacent to the iirst of the series 'of said ports, a steam-passage communicating with each inlet-port, said passage having one end closed and its other end connected WithA the inlet-pipe, and a Wheel-shaped piston mounted to turn in the cylinder and provided on its periphery with a series of pockets correspondingin number With the number of inlet-ports, substantiallyas herein shown and described.

2. In apsteani-engine, the combination of the ring-shaped cylinder D, having an annular recess D', the inclined inlet-ports a, and

inlet-ports, the pipe K, having one end closed and connected at the other end with the inlet-pipe, the branch pipes I, connecting the pipe K with the portsct, and the Wheel-shaped piston E, provided with the buckets I on its periphery, substantially as herein shdwn and described. l

3. In an rotary engine, the combinatiomof a ring-shaped cylinder D, having an annular recess D', the inclined ports a, and the exhaust-port b,the pipe K, having'one end connected to the inlet-pipe, the branch pipes J,

connecting the pipe K With the ports a, the

Wheel-shapedvpiston' E, provided with the buckets I on its periphery, andthe packingrings O, bearing against the face of the piston, substantially as herein shown and described. LABAN J. EVEREST. \.Vitnes`ses:4

W. E. HURLBUT, J. W. MOORE. 

